public Brush CopyList()
{
Brush brush = new Brush();
brush.max = max;
brush.min = min;
brush.Polys = Polys.CopyList();
if (!IsLast)
{
brush.SetNext(Next.CopyList());
}
return brush;
}
public void SetNext(Brush brush)
{
if (IsLast)
{
Next = brush;
return;
}
if (brush == null)
{
Next = null;
}
else
{
Brush b = brush;
while (!b.IsLast)
{
b = b.Next;
}
b.SetNext(Next);
Next = brush;
}
}
public void Load(Tokenizer tokenizer)
{
entityList.Clear();
entities = 0;
polygons = 0;
textures = 0;
while (tokenizer.PeekNextToken().Type != Tokenizer.TokenType.EndOfStream)
{
var token = tokenizer.GetNextToken();
if (token.Type == Tokenizer.TokenType.StartBlock)
{
Entity e = new Entity();
Brush brushList = null;
token = tokenizer.GetNextToken();
while (token.Type != Tokenizer.TokenType.EndBlock)
{
switch (token.Type)
{
case Tokenizer.TokenType.Value: // Key/value pair
var value = tokenizer.GetNextToken();
if (value.Type == Tokenizer.TokenType.Value)
{
e.Properties.Add(token.Contents, value.Contents);
}
else
{
throw new FormatException(String.Format("Expected a value, received a {0}", value));
}
break;
case Tokenizer.TokenType.StartBlock: // Brush
Brush b = new Brush();
Face faces = null;
int uiFaces = 0;
while (tokenizer.PeekNextToken().Type != Tokenizer.TokenType.EndBlock)
{
Face face = new Face();
Vector3 v1 = Vector3Extension.FromToken(tokenizer);
Vector3 v2 = Vector3Extension.FromToken(tokenizer);
Vector3 v3 = Vector3Extension.FromToken(tokenizer);
face.plane = new Plane(v1, v3, v2);
// TODO: read texture maybe?
string textureName = tokenizer.GetNextValue();
// parsing
int xOffset = Convert.ToInt32(tokenizer.GetNextValue());
int yOffset = Convert.ToInt32(tokenizer.GetNextValue());
int rotation = Convert.ToInt32(tokenizer.GetNextValue());
float xScale = Convert.ToSingle(tokenizer.GetNextValue());
float yScale = Convert.ToSingle(tokenizer.GetNextValue());
face.texAxis = new Plane[]
{
new Plane {
d = xOffset
},
new Plane {
d = yOffset
}
};
face.texRotation = rotation;
face.texScale = new float[] { xScale, yScale };
if (faces == null)
{
// assign as the fist face
faces = face;
}
else
{
// add face to the list
faces.AddFace(face);
}
uiFaces++;
//var newFace = new Face(v1, v2, v3, textureName, xOffset, yOffset, rotation, xScale, yScale);
//b.AddFace(newFace);
}
Poly polyList = faces.GetPolys();
// Sort vertices and calculate texture coordinates for every polygon
Poly pi = polyList;
Face f = faces;
for (int c = 0; c < uiFaces; c++)
{
pi.plane = f.plane;
pi.TextureID = f.texture.ID;
pi.SortVerticesCW();
//pi.CalculateTextureCoordinates(
// f.texture.GetWidth,
// f.texture.GetHeight,
// f.texAxis[0], f.texAxis[1],
// f.texScale[0], f.texScale[1]);
f = f.Next;
pi = pi.Next;
}
b.AddPoly(polyList);
b.CalculateAABB();
if (brushList == null)
{
brushList = b;
}
else
{
Brush temp = brushList;
while (!temp.IsLast)
{
temp = temp.Next;
}
temp.SetNext(b);
}
tokenizer.GetNextToken(); // Brush end block
break;
default:
throw new FormatException(String.Format("Expected either a block start or a value, received a {0}", token));
}
token = tokenizer.GetNextToken();
}
// End of entity
// Perform CSG union
if (brushList != null)
{
e.AddPoly(brushList.MergeList());
brushList = null;
polygons += e.GetNumberOfPolys();
}
entityList.Add(e);
}
}
Console.WriteLine("Map created.");
Console.WriteLine(" -" + entities + " entities loaded.");
Console.WriteLine(" -" + polygons + " polygons loaded.");
}
public Poly MergeList()
{
Brush clippedList = CopyList();
Brush clip = clippedList;
Brush brush = null;
Poly polyList = null;
bool clipOnPlane = false;
for (int i = 0; i < GetNumberOfBrushes; i++)
{
brush = this;
clipOnPlane = false;
for (int j = 0; j < GetNumberOfBrushes; j++)
{
if (i == j)
{
clipOnPlane = true;
}
else
{
if (clip.AABBIntersect(brush))
{
clip.ClipToBrush(brush, clipOnPlane);
}
}
brush = brush.Next;
}
clip = clip.Next;
}
clip = clippedList;
while (clip != null)
{
if (clip.GetNumberOfPolys != 0)
{
// Extract brushes left over polygons and add them to the list
Poly p = clip.Polys.CopyList();
if (polyList == null)
{
polyList = p;
}
else
{
polyList.AddPoly(p);
}
clip = clip.Next;
}
else
{
// Brush has no polygons and should be deleted
if (clip == clippedList)
{
clip = clippedList.Next;
clippedList.SetNext(null);
clippedList = clip;
}
else
{
Brush temp = clippedList;
while (temp != null)
{
if (temp.Next == clip)
break;
temp = temp.Next;
}
temp.Next = clip.Next;
clip.SetNext(null);
clip = temp.Next;
}
}
}
return polyList;
}
